X nonelectrolyte osmotic pressure 1.8 atm Y 4.2 atm

Consider two solutions at a certain temperature.

Solution X has a nonelectrolyte as a solute

and an osmotic pressure of 1.8 atm.

Solution Y also has a nonelectrolyte as a solute

and an osmotic pressure of 4.2 atm.

What is the osmotic pressure of a solution

made up of equal volumes of solutions X and Y

at the same temperature?

Assume that the volumes are additive.

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π = MRT

( 참고 https://ywpop.tistory.com/1921 )

---> 같은 온도에서,

삼투압과 몰농도는 비례 관계.

---> 삼투압을 농도처럼 다룰 수 있다.

( 참고: M1V1 + M2V2 = M3V3 https://ywpop.tistory.com/9420 )

> π1 = 1.8 atm

> π2 = 4.2 atm

π = (π1 × V1 + π2 × V2) / (V1 + V2)

equal volumes of solutions X and Y

---> V1 = V2 = 1 L 라고 두면,

π = (π1 × 1 + π2 × 1) / (1 + 1)

= (1.8 + 4.2) / (2)

= 3 atm

답: 3 atm

[키워드] 비전해질 삼투압 기준, 삼투압 혼합 기준, 혼합 용액의 삼투압 기준